Automatic flushing apparatus for water closets and like purposes



sept. .22, 1936. 2,055,271 AUTOMATIC FLUSHING APPARATUS FOR CLOSETS AND LIKE PURPOSES Filed Sept. 18, 1935 WQ f /NYEA/m? f Vaag -Patented Sept. 2.2, 1936 AU'rorrA'rmrLUsmNG ArPAnATUsoni-f.: 4

WATER CLOSETS :LIKE =PURPOSES j Pierre Emile Yuagnatiarisgtllrancef j Application september 1s, 1935, serial No. 4143s,?, L ,f i ..In.FranceSeptember22, 1934 1m Thel present invention relates to an improvement in apparatus forflushing `water closets and for similar purposes of the type (hereinafter referred to as the type specified) comprising a i hermetically closed reservoir having an opening for the discharge of the flushing water which is normallyclosed by a piston valve arranged to slide .in -a 'cylinder that communicates, at` the I* lower end, with theV interior of the reservoir and, j,

: at theupper end,` with a low pressure tube by vway of an opening controlled by anauxiliary valve adapted Lto be actuatedby the devicefor initiating the flushing operation.

` lThe particularadvantage of apparatus of this type is their ease of use due to the fact that they do not necessitate more than a very weak initiating effort in order to produce the lowering of pressure which, by destroying the equilibrium of the pressures within the reservoir, automatically causes the raising of the flushing valve, in contradistinction to those apparatus where the flushing valve is actuated directly by the user who must exert a stronger effort in order to overcome the pressure of the Water and compressed air 2 which is acting on this valve. However, in the .apparatus of the type specified the disposition of the low pressure tube and of the control members f-or initiating the ushing operation presents certain practical diiiiculties which are evidenced by an increase in the size of the apparatus and in the costs of construction and installation. On the other hand the control members and the members for initiating the flushing operation are only accessible with difficulty which renders the upkeep of these apparatus relatively difiicult.

The present invention obviates the diiculties set out above due to the fact that, in an appa-` ratus of the type specified, the cylinder for the piston valve and the low pressure tube are formed as two adjacent compartments in a single casting which is mounted on the bottom of the ushing reservoir to constitute together with the said bottomv and the device for initiating the iiushing operation, which is also supported by the said bottom, a compact unit detachable from the reservoir. f

This particular disposition of the low pressure tube and of the control members results in a simpliication of the construction of the apparatus and a reduction in its size. The mounting and dismounting of the accessories unit may be effected very rapidly and thisfacilitates the upkeep of the apparatus. 55 In the accompanying drawing there is shown,

claims. (01.?"4-#3si '1 ,e e u y e Vby way Vof example,gone way ,which the invention may be carried into,r effect.

Infthesingle gure of thisdrawinglshowing a longitudinal section of theapparatus according to thefinventionthe ushingfdevice compriSSa;5

A.aztankY |0|4 connected ,to a supply |02 .of water 1 under pressure; atitslowerpart, above the outlet pipe; |03is disposed a cylinder |04 containing a piston-valve |05,the lower spherical part |06 of which 4`adaptedtocooperateiwith the rub-@o ber seat |01; at the upper" part of the vcylinder |04V there is ,provided a chamber |08`. having its f upperNside formedawitha calibrated aperture 109; this chamberlcommunicates. withaI low pressure pipe ||0 opening at into the 'outlet 15 pipe |03 and forming with the adjacent cylinder |04 a single cast piece supported by the tank bottom |0|; at the mouth of this pipe ||0 there is a rubber ball valve ||2 secured on a rod H3, the lower part ||4 of which passes through a packing ||5 and is pulled downwards by a spring [I6 resting upon the head ||1 of the rod; an operating handle H8, pivoted on an axis ||9 carried in two eyes |20 formed on the extension |0| of the tank bottom |0|, is provided with a lug |2| at right angles, capable of lifting the 25 rod ||3 of the ball valve l |2 when the handle H8 is depressed.

In the tank |0| is disposed a pipe |22 for the evacuation of the air, said pipe opening in the tank at its upper end |23 and into the atmos- 30 phere, at |24, by its lower end. On this tube |22 is disposed a small chamber |25, provided at its lower part with a seat |26 and containing a light ball |21. It will be seen that, upon filling of 3 the tank, as soon as the air tends to escape, the valve |21 will close.

The operation of the device described is as follows: The piston valve |05 having been lifted (as will be explained further) and all the water contained in the tank having been emptied by the outlet pipe 03, the piston valve |05 falls back upon its seat due to its own weight, the tank is lled by the supply pipe |02 under pressure and the Vball valve |21 of the air pipe |22 falls immediately back upon its seat |26 and prevents the exit of the air. The level of the water rises up to |28, retaining at the upper part of the tank all the airinclu'ded in the latter, the air being compressed to the pressure obtained in '50 the pipe |02, for instance to 3 lig/cm2. The upper chamber |08 of cylinder |04 is now lled with water.

If it is desired to eiect another flushing operation, it is merely necessary to destroy the equiseat |01 by the Water pressure acting upwards. through the two large apertures |04 formed' 'ii'i the lower part of the cylinder x'lzlirl;dihns:puttingV the interior of this cylinder iSuini-:little 'outlet pipe- |03 into direct communication mthitheinterior All the water contained'inthe latter is expelled into thei'giipe tlbyftheexpansion of the air under pressure at the iupperlipaxrt 1:

of the tank IDI.

of the tank. At the endrof this phasenthe 1losses of air which may be due to the solution f "the "air under pressure, inl Eheiwatergfor otherwise, are compensated by am :arrivarci .air rommhe'lout- 30 usliingfdevice lagain fready fior operation.

'Iclaim'r Y 1 31. Apparatus for 1flushing waterlc-losets `and ffor y s'imi'larpurposes comprising f'alhermeticallyplosed reservoma Asupplyoi Water {uner pressure fat i "if the upper part of the reservoir, an outlet pipe at the lower part of the reservoir, a detachable bottom at the lower part of the reservoir, this bottom being integral with said outlet pipe, in said reservoir a low pressure tube communicating at its lower end with said outlet pipe, a cylinder communieating at its lower end with the interior of the reservoir and `with said outlet pipe and at its rapper end -wihlsaid low pressure 'tbe, ia piston 'valve arranged tslideiiin'said cylinder land control the communication of said cylinder with the "interior of said reservoir and with said outlet irpe,'-2an auxiliary Naive arranged to control the said cylinder with said low .plessureftubaa device for initiating the flushing "operatio1,' said cylinder and said low pressure aituheibeing ilormed'astwo adjacent compartments 15in fa'singleicast piece which is mounted on the bottom of the reservoir to constitute together with "said'bottom and said device for initiating the flushing operatrmnwhichisfalso supported :byfsaid Ib'ottom, .afcompaxzt :unit'idetachable from the resei'-lvoir.. i

Y* j 1 y Apparatus according tto claim 1, wherein lsaid vdevice iior initiating the ush-ingpperationom- Aipiiise's l.an:foperazting'.fhaamd-le and .-a lvali/.e :rodwhich i iislarrange'd i-nfsaidiow :pressure Stube Ito .slide 1parfallel withratheflongitudinal axis .of said .cylinder, said vbottom of the reservoir ;b'einfg provided -with `-a cast extension in :whichiis mounted in a water- `-tiglfit :manner fthe dower part of sa-id valve rod-and :which supportssaiidg oper-ating handle.

PrER-REWEMILE VUAGNAT. 

